Meta Description: See how Jingtai LCD Display resolved a 0.9% pixel defect issue for an Indian client with a 72-hour turnaround. Our solution involved OBA inspection, SOP validation, and cost-sharing, ensuring long-term quality for the A669L LCD model.

Case Study Body

1. The Customer Challenge

A valued partner in India reported a critical quality issue with a shipment of A669L monochrome LCD displays. Upon their rigorous incoming inspection, they identified a minor but impactful defect: a percentage of units exhibited pixel anomalies ("黑白点" - black/white dot defects), which fell under appearance-related non-conformities. Although the defect rate was quantified at a precise 0.9%, our client, maintaining high standards for their end-products, required an immediate and robust corrective action to prevent future occurrences and ensure supply chain integrity.

2. Root Cause Analysis & Immediate Response

Our quality assurance team initiated a cross-functional investigation. The client's detailed report and evidence allowed us to quickly trace the potential production lot. Understanding the urgency to maintain our client's production schedule and trust, we committed to a transparent and swift 72-hour resolution plan. We provided regular updates to the client, ensuring they were informed at every step.

3. The Implemented Solutions

Instead of a simple replacement, we deployed a multi-layered, strategic solution that addressed both the immediate issue and future prevention:

3.1 Domestic Analysis & Enhanced Pre-shipment Inspection:

First, we immediately shared the client's test data and samples with our factory's engineering team in China. This data was used to perform an Out-of-Box Audit (OBA) on the production line. This pre-shipment inspection protocol was tightened specifically for the A669L model to catch any pixel defects before units left the factory, preventing faulty goods from ever reaching the port.

3.2 Technical Documentation Transparency & Standardization:

To align quality expectations and methodologies, we provided the client with both the old and new versions of our Testing Standard Operating Procedure (SOP). This allowed for a clear technical "答辩" or defense of our quality process, demonstrated our commitment to continuous improvement, and ensured both parties were using aligned inspection criteria moving forward.

3.3 Equitable Cost-Sharing Agreement:

In a gesture of goodwill and shared responsibility, we proposed a heterogeneous processing cost structure. This meant that the costs associated with the extra sorting, analysis, and enhanced inspections were shared fairly between us and the client, strengthening our partnership and demonstrating our commitment to mutual success.

4. Results and Long-Term Benefits

4.1 Time to Resolution: The issue was fully resolved and signed off by the client within the promised 72-hour window.

4.2 Client Satisfaction: The client confirmed their satisfaction with the thoroughness of the technical response and the fairness of the cost-sharing solution.

4.3 Preventive Measures: The implementation of a stricter OBA process for this product line has significantly reduced the risk of future pixel defect incidents, leading to a more reliable supply chain.

4.4 Strengthened Partnership: This incident transformed a quality challenge into an opportunity to deepen technical collaboration and build stronger trust with our international client.

5. Conclusion

This case underscores our philosophy that a superior supplier does more than just replace defective parts. We invest in process improvement, transparent communication, and fair business practices. By taking full accountability and working hand-in-hand with our client in India, we turned a potential setback into a demonstration of our reliability and commitment to excellence.